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-B. M. BEAL'L. Hitohing Clamp.

(No Model.)

No. 239,422. Patntd March 29,1881.

WW za/ 40% MPETEFS, IIHOTWLITHOGRAPHER, WkSHINGTON, DV 6.

UNITED STATES PATENT OFFICE.

BENJAMIN M. BEALL, OF WASHINGTON, DISTRICT OF COLUMBIA.

HITCHING-CLAMP.

SPECIFICATION forming part of Letters Patent No. 239,422, dated March29, 1881.

Application filed September 11, 1880. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN MANDEVILLE BEALL, of the city ofWashington, District of Columbia, have invented a certain new and usefulImprovementin Portable Hitchin g-Glam ps; and I declare the following tobe a full, clear, and. exact description of my invention, such as willenable mechanics and others skilled in the art to make and use the same,reference being had to the accompanying drawings, in which the sameletters and figures are used to indicate the corresponding parts.

My invention relates to an improvement in hitching-clamps; and itconsists in providing a light, easy-working, cheap, portable, andeffective device, which is easily adjusted to the curbstone orprojections in pavements, which,

i when fastened, prevents the animals from walking off or running away.

It will be noticed that this clamp requires no special deviceon which itis to be fastened, but can be safely secured to the curb or anyprojections on the street.

in the drawings, Figure 2 represents a view of the whole device; Figs. 1and 3, detail views.

G is a bar having on its end the spring-hook c, and on its upper sidethe serrated or notched edge c, with which the lever E, with itsserrated or toothed end F is adapted to engage. On the opposite end ofthe bar 0, besides a lug or other suitable projection which prevents thesliding frame D from slipping off, is also a sharpened point, L, ofsuitable shape to loosen the earth, and thereby facilitate theintroduction of the hook cl between the pavement and curbstone.

D is a frame through which the bar 0 slides freely, and it is providedon its under side with the hook d and the bar S. This hook (I is bent inan opposite direction from the spring-hook c. The bar S prevents theclamp from turning over on its side after it has been secured to thecurb, pavement, or other projection. The upper side of this frame D isprovided with the peculiar-shaped part B, which has the elongatedopening G, and also the opening 0, through it. In the opening G thetoothed lever E works upon the serrated or toothed edge of the bar 0,while the opening 0 serves as a ring, through which the hitching-strapis drawn.

The pawl represented in detail in Fig. l, and as riveted to the frame Din Fig. 2, has a small spring, I, upon its under side, that the tooth amay constantly engage upon the serrated edge of the bar 0, and therebysecurely hold the clamp in position when adjusted.

The toothed lever E operates in the opening G, as before stated, and isso arranged that it will work directly on the teeth 6, the opening Jadmitting of an easy and irregular motion upon the rivet that passesthrough it.

The operation of the device is as follows: One end 'of thehitching-strap is fastened to the bit-ring of the" bridle, the steelhook O placed across the curbstone, the curved end toward the gutter.The frame D, with hook d, is placed close against theinner edge of thecurbstone, and the bar 0 drawn so as to engage the point of thespring-hook 0 with the outer side of the curbstone. The lever E shouldnow be lowered to engage with the teeth 6 and pressed down, using as afulcrum the rivet that passes through the opening J. This will cause thebar G to slide in the frame D, when the pawl B will engage in eachsuccessive tooth that passes under it. The lever can now be raised andthe same operation repeated until the pawl engages with its ultimatetooth on the bar (1, to securely fasten the clamp. It can be readilyreleased from its hold on the curbstone by pressing first on the leverE, to relieve the tension on the tooth a, and then. on the handle of thepawl H. This will disengage the tooth to from that of the bar 0, whenthe tensionof the spring-hook a will throw the hooks c d from thecurbstone.

What I claim is 1. An adjustable hitching-clamp provided with the bar 0and the sliding hooked frame D, adapted to be secured in position by asuitable lever and pawl, substantially as shown.

2. The frame D, having the hook (I and the cross-bar S, in combinationwith the bar 0, 9

with its spring-hook 0, a suitable lever, and pawl, substantially as setforth.

3. The combination of lever E, bar 0, with its serrated edge andspring-hook c, pawl, with its spring I, frame D, provided with book d,and bar S, substantially as shown.

In testimony that I claim the foregoing ,I have hereunto set my handthis 3d day of September, A. D. 1880.

BENJAMIN MANDEYILLE BEALTi.

Witnesses R. J. BEALL, CHAS. D. Coins.

IOC:

